I looks like this topic is mostly related to software problems. Therefore, it is mostly already covered by SuperUser. Or am I missing something?
Questions about podcasting aren't entirely related to software. I just think the majority of questions for this proposal at the current moment seem to focus on this. That doesn't mean that all questions about podcasting would be about software. I think we just need to come up with better questions that are more representative of what a podcasting SE would have as on-topic.